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| Mirrors > Home > MPE Home > Th. List > elrab3 | Structured version Visualization version GIF version | ||
| Description: Membership in a restricted class abstraction, using implicit substitution. (Contributed by NM, 5-Oct-2006.) |
| Ref | Expression |
|---|---|
| elrab.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| elrab3 | ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrab.1 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
| 2 | 1 | elrab 3648 | . 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ (𝐴 ∈ 𝐵 ∧ 𝜓)) |
| 3 | 2 | baib 545 | 1 ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2147 {crab 3416 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-v 3456 |
| This theorem is used by: unimax 4910 fnelfp 7211 fnelnfp 7213 onprcr 7825 fnse 8187 fin23lem30 10459 isf32lem5 10474 negn0 11784 ublbneg 13100 supminf 13102 sadval 16670 smuval 16695 dvdslcm 16817 dvdslcmf 16850 isprm2lem 16900 isacs1i 17881 isinito 18221 istermo 18222 subgacs 19421 nsgacs 19422 odngen 19842 sdrgacs 21109 lssacs 21293 ssdifidllem 21691 mretopd 23465 txkgen 24026 xkoco1cn 24031 xkoco2cn 24032 xkoinjcn 24061 ordthmeolem 24175 shft2rab 25884 sca2rab 25888 lhop1lem 26388 ftalem5 27461 vmasum 27600 eqcuts2 28229 elmade 28300 addonbday 28722 israg 29229 ebtwntg 29617 eupth2lem3lem3 30888 eupth2lem3lem4 30889 eupth2lem3lem6 30891 cycpmco2lem1 33786 cycpmco2lem4 33789 cycpmco2 33793 1arithufdlem2 34181 tgoldbachgt 35403 cvmliftmolem1 36254 nmulr0 37159 neibastop3 37365 fdc 38945 pclvalN 41213 dvhb1dimN 42309 hdmaplkr 43236 aks4d1p8 43403 sticksstones1 43462 fsuppssind 43887 diophren 44086 islmodfg 44337 fsovcnvlem 45274 ntrneiel 45342 radcnvrat 45559 supminfxr 46747 stoweidlem34 47317 |
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